Carbureter.



0. WINKLBR. OABBUBETEB.

APPLICATION FILED 001219, 1907.

1,060,053, Patented Apr. 29, 1913.v

Wit ssses 1h Venison yg g Otto WinKle T oat Ti l 1 rroza OTTO WINKLER, OF COPENICK, GERMANY, ASSIGNOR TO ,GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.

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Specification of Letters Batent.

Application filed October 19, 1907. Serial n 398,166.

action of the carbureter.

Many liquid fuels require to be subdivided into extremely fine particles in order to. obtain good combustion. simply attained by atomizing or spraying them by means of a vigorous jet of air; In the ordinary Operation of an internal combustion engine, the air current is due to the suction produced by the outstroke of the e11- gine piston. In order to concentrate this air current and cause it to operate strongly and sharply upon the stream of fuel and thereby effect a complete atomizing of the same, I arrange a tapering funnel for the entrance of the air arranged adjacent to the fuel jet; A valve is placed between the mixing chamber and the cylinder and is kept closed until a certain vacuum has been produced in the cylinder, so that the rush of air through the funnel will be suddenand forcible. Another valve is arranged to open a large port into the mixing chamber to give a sufiicient volume of air at the proper point in the stroke. v

The accompanying drawing is a sectional diagrammatic view of an engine and carbureter embodying my improvements.

The piston 1 reciprocates in the cylinder 2- and revolves the crank 3 by means of the connecting rod 4. A mixing chamber 5 communicates with the upper end of the cylinder through a port 6 controlled by an admission valve 7, which is opened at the proper point in the stroke by means of a cam Son arotatmg shaft 9. This valve 1s arranged near one end of the mixing cham-.

her, and at the other end'thereof is a-nozzle 10-communicating with a suitable source of supply of liquid fuel, such as gasolene.

Adjacent to said nozzle is a funnel 11 forming'one end ofthe mixing chamber.

. small end of said funnel stands close to the tip of the nozzle, the axes of these two elements being preferably at right angles to each other. The funnel is adapted to take This result is most The in a large amount of air through its Wide mouth 12 andv concentrate it in a small powerful jet across the tip of the nozzle. The liquid fuel is fed to the nozzle by any approved means suitable for the purpose. I prefer, however, to use means of a well known type which will maintain the fuel at such a .level in the nozzle that the blast passing over. the tip of said nozzle will draw up the fuel and atoinize it. At some convenient point in the wall of the mixing Patented Apr. 29, 1913.

chamber is an airdnlet port 13, controlled by a valve 14, which can be opened by a cam 15 on a rotating shaft 16. In actual practice the two shafts 9, 16 would be preferably one and the same:

' The operation is as follows: The admission valve 7 remains closed until the crank 3 has made sa 1 one sixth of a revolution starting from the upper dead center. The

downward movement of the piston 1 creates a vacuum in the cylinder 2, so that when, at this instant, tliecam 8 lifts'the admission valve 7 there is a sudden and vigorous rush of. air through the funnel 11. The jet issuing-froni the small end offthe funnel exerts a powerful atomizer effect upon the liquid fuel in the nozzle 10, so that the mixing chamber is filled with spray. An instant later, the air-valve 14 is opened by the cam 15, and a considerable vohune of air is admitted suflicient'to form an explosive charge which enters the cylinder through the port 6,

The volume of air admitted through the neck of the funnel 11 is relatively small so that a reduced pressure due to the suction effect of the piston is maintained untilthe pressure is raised to atmospheric pressure by the opening of the valve 14. The equalization of the pressures at the opposite ends of .the funnel due to the opening of the valve 14 causes the spraying action to cease.

. hat- I claim as newand desire to secure by Letters Patent of the United States, is-

1. The combination with an engine cylinder-and piston, of a mixing chamber'having a small air-inletopeningfthrough which a curre'nt of air is drawn by "the suction action of the 'pi'ston and a large air-inlet port,' a. fuel nozzle adjacent the small inlet opening'with which nozzle the air current, cooperates to supply a fuel charge to the cyl inder, and means controlling the large port 'which opens it at a predetermined pointinthe suction stroke of the piston to check said air current by equalizing the pressures atopposite ends of the small opening,

.2, The combination with an engine cyliir der and pistomof a mixing chamber, a fuel nozzle therein, a device having an opening communicating at one end'with the atmosphere and terminating at its other end ad'- acent the nozzle, a valve controlling 'a port between the. cylinder and the chamber,- means for opening the valve after the piston on its suction stroke has created a certain degree ofvacuum'in thecylinderto cause said vacuum to draw a current of air through said device, a valve controlling communication between the-atmosphere and said chamber, and'means for operating the valve'that' opens 'it ata point in the suctionfstroke subsequent to the opening of the firstvalve.-

3.1,The combination with an engine cylinder and piston, of a mixing chamber, a

fuel nozzle therein, means cooperating with s'aid 5 cylinder and piston to concentrate a vigorous. et of air across said nozzle at a predetermined point in the suction stroke of the piston, avalve for admitting air to ;.the.- chamber at' ajsubsequentpoint in said stroke,"and means for v --4."Thecombination with an engine cylcontrolling the ope ation of the valve, a

jinderand piston, of a mixing chamber, a

fuel nozzle therein, meanscotiperating with the cylinder and pistonfor concentratinga vigorous jetof air across said nozzle atta predetermined point in the stroke, and

- means. for admitting a considerable volume 40 inder and piston, of a mixingchamber, a

If airto; the mixing chamber at ja later point'in the stroke. f 5, The combination with an engine cylfuel nozzle therein, a tapering funnel having its large end openingto'the atmosphere and its small end arranged: adjacent the nozzle .to deliver a current of airwhich draws fuel from said nozzle and 'atomizes it, a valve;

controlling a port'betweenthe mixing chambe! and ,the cylinder, a cam for operating the valve which opens it at a'point i'nthe suction stroke of the piston subsequent to the beginning of said stroke, the suction action of the piston. causing acurrent of air to flow through the funnel and deliver a charge to the cylinder, a valve controlling a passage between the interior of the chamher and the atmosphere, and a camffor opening said valve at a predetermined .'interval after the first valve isiopened to admit air to the chamber to equallze the pressures at opposite ends offlth'e funnel and thereby check the flow through-said funnel.

6Q The combination- 'with-an engine cylinder and piston, ota vaporizing device through which a current of, aircis drawn from a suitable source'by the suction stroke of the piston to form} a charge of fuel, a

valve for controlling the admission of the charge to, the. cylinder, means for opening said valve after the. piston on its suction stroke has created a certain degree of vacuum in the cy-Iinder'to cause the vacuum 7 to draw a "current of air at high-velocity through said devioe, and a valve thatadmits air at the-pressureof said source to the delivery side of the device subsequently to the oTTo .WI-NKLER,

Witnesses? J nuns RoNNLA D, KARL BIEKELEEN. iv 

